pageIndex = 2 outOfVisibleViewPort = false
4 colored paint brushes

What is the Decorator Pattern

The Decorator pattern is a structural design pattern used to extend the functionality of objects in a flexible and reusable way.

pageIndex = 3 outOfVisibleViewPort = true
“Dependency Injection and Lifetimes” over a gradient background

Dependency Injection And Lifetimes

In software development, particularly in the context of dependency injection (DI), the lifetimes of services determine how long an instance of a class is kept alive. Let’s define them.